json helper that end with ?commonjs-proxy go through vite:json then throws a error

[QiroNT]

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Describe the bug

If a commonjs dependence imports a json, vite throws an error.

[vite:json] Failed to parse JSON file.
file: /***/***.json?commonjs-proxy

By manually logging the id passed to vite:json:

/***/***.json
/***/***.json?commonjs-proxy

It shows that the json helper come out from @rollup/plugin-commonjs get recognized as a "json" and go through vite:json plugin.

Reproduction

Add a commonjs dependence that imports a json, like markdown-it.

System Info

• vite version: 2.0.0-beta.45
• Operating System: Windows
• Node version: 15.5.1
• Package manager (npm/yarn/pnpm) and version: yarn 2.4.0

Logs (Optional if provided reproduction)

building for production...
[vite:json] Failed to parse JSON file.
file: /***/node_modules/entities/lib/maps/entities.json?commonjs-proxy
error during build:
Error: Failed to parse JSON file.
    at error (\***\node_modules\rollup\dist\shared\rollup.js:4528:30)
    at throwPluginError (\***\node_modules\rollup\dist\shared\rollup.js:18162:12)
    at Object.error (\***\node_modules\rollup\dist\shared\rollup.js:18769:24)
    at Object.error (\***\node_modules\rollup\dist\shared\rollup.js:18331:38)
    at Object.transform (\***\node_modules\vite\dist\node\chunks\dep-76d13b8d.js:40690:22)
    at \***\node_modules\rollup\dist\shared\rollup.js:18971:25